Machine foe



STATES PATENT OFFICE.

JOHN H. LYON, OF BALTIMORE, MARYLAND.

MACHINE FOR SPLITTING COAL.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, JOHN H. LYON, of Baltimore, in the State ofMaryland, have invented an Improved Machine for Splitting Coal; and I dohereby declare the following to be a correct description of the same,reference being had to the accompanying drawings, in which Figure l, isa perspective view of my machine; Fig. 2, is a side elevation of thesame; and Fig. 8, is a detail viewof the endless belt, with its spikesand guards.

The same part is indicated by the same letter of reference in all thefigures.

The nature of my invention consists in a new arrangement of mechanicalmeans for reducing coal, as it comes from the mine, to the sizesrequired for use.

Various plans have heretofore been adopted for this purpose; but most,if not all, of them have employed a pressing or crushing force, whichwas attended with great loss of coal, in consequence of large quantitiesof it being reduced to dust or powder. In my machine, I employ the forceof percussion, which is the best adapted to the rapid reduction of thematerial, without unnecessary waste.

In the drawings, A marks the frame of the machine; B, the main shaft; C,the bevel wheel on the end of the main shaft; D, D, D, loose cams movingrespectively on rods F, F, F, as axles; E, E, E, fast cams, attachedfirmly to rods F, F, F; G, G, G, stocks or frames of picks; H, H, picks;H, spikes in endless belt; I, guards form ing rim of endless belt; K,endless belt; L, frame or platform on which belt, K, is sup ported andmoves; M, end rollers, over which belt K moves; N, hammers driving picksH; O, hammer-stock attached to rod F; P, ratchet attached to end ofrollers M; Q, side plates to prevent coal that may fall off the beltfrom clogging the machine; R, S, T, U, arms working the ratchet P, bymeans of the pawl as shown. The pick stock, G, is attached to rod F; thestock G to rod F, and the hammer-stock O, to rod F. The pick stock G isadjusted in height by rods V, or in any convenient manner. The picks H,are driven by the hammers N, and retracted by spiral springs as shown.

The operation of the machine is as follows: Power is applied in anyconvenient way to the shaft B, and communicated to the operative partsby means of the bevel 19,429, dated February 23, 1858.

wheel C, which meshes into bevel gearing on cam D. This cam is loose onrod F, and revolves upon it. As it revolves, it forces cam E to rise,until the two attain the relative positions shown in Fig. 1, when cam,E, falls, and with it rod F, andpick stock G, giving the required blow.On the outer edge of cam wheel D, are cogs which gear .into similar cogson the edges of cam wheel D, which, in their turn, gear into similarcogs on D. Thus all the cams are worked simultaneously, and in the samemanner.

I have shown in the drawings, at 0, an arrangement for driving the picksby hammers. Instead of the pick stock, I here use a hammer stock, havingloose hammers, N, suspended in it. This stock is attached to rod F, andworked in the same way as the pick stocks. The picks driven by thehammers, are placed in the adjustable stock G, and are retracted orelevated by means of spiral springs. This method, I have shown merely asa variation which I have contemplated in the mode of applying thepercussive force.

The coal to be broken is fed on to the endless belt K, and supportedabove its surface by the spikes H. The belt is driven by the ratchetwheel, worked by a pawl in the usual way. As the coal passes under thepicks, it is broken into sizes, regulated by the distances at which thepicks are placed from each other. The fine coal and dust falls upon thebelt between the spikes H", while the larger lumps are supported uponthe ends of those spikes, and may be delivered into a separate chute.The guards, I, which, when the belt is horizontal, form a continuous rimalong its edge, keep the finer coal from falling off at the sides, andclogging the machine.

Having thus fully described my invention what I claim therein as new anddesire to secure by Letters Patent is The arrangement for jointoperation, in the manner and for the purposes described, of the spikedendless belt K, and the picks H, H, driven by percussion substantiallyas specified.

The above specification signed and witnessed this fifteenth day ofJanuary A. D. 1858.

JOHN H. LYON.

Witnesses:

HENRY D. MEARS, CHAS. F. STANSBURY.

LOO

J. H. MAYDOLE.

Stone-Gatherer.

"No. 19,430. Patented Feb. 23. 1858.

